git.sesse.net Git - casparcg/blob - modules/decklink/producer/decklink_producer.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "decklink_producer.h"\r
  25 \r
  26 #include "../interop/DeckLinkAPI_h.h"\r
  27 #include "../util/util.h"\r
  28 \r
  29 #include "../../ffmpeg/producer/filter/filter.h"\r
  30 #include "../../ffmpeg/producer/util/util.h"\r
  31 #include "../../ffmpeg/producer/muxer/frame_muxer.h"\r
  32 #include "../../ffmpeg/producer/muxer/display_mode.h"\r
  33 \r
  34 #include <common/concurrency/com_context.h>\r
  35 #include <common/diagnostics/graph.h>\r
  36 #include <common/exception/exceptions.h>\r
  37 #include <common/log/log.h>\r
  38 #include <common/memory/memclr.h>\r
  39 #include <common/utility/param.h>\r
  40 \r
  41 #include <core/mixer/write_frame.h>\r
  42 #include <core/producer/frame/frame_transform.h>\r
  43 #include <core/producer/frame/frame_factory.h>\r
  44 \r
  45 #include <tbb/concurrent_queue.h>\r
  46 \r
  47 #include <boost/algorithm/string.hpp>\r
  48 #include <boost/foreach.hpp>\r
  49 #include <boost/property_tree/ptree.hpp>\r
  50 #include <boost/timer.hpp>\r
  51 \r
  52 #if defined(_MSC_VER)\r
  53 #pragma warning (push)\r
  54 #pragma warning (disable : 4244)\r
  55 #endif\r
  56 extern "C" \r
  57 {\r
  58         #define __STDC_CONSTANT_MACROS\r
  59         #define __STDC_LIMIT_MACROS\r
  60         #include <libavcodec/avcodec.h>\r
  61 }\r
  62 #if defined(_MSC_VER)\r
  63 #pragma warning (pop)\r
  64 #endif\r
  65 \r
  66 #pragma warning(push)\r
  67 #pragma warning(disable : 4996)\r
  68 \r
  69         #include <atlbase.h>\r
  70 \r
  71         #include <atlcom.h>\r
  72         #include <atlhost.h>\r
  73 \r
  74 #pragma warning(push)\r
  75 \r
  76 #include <functional>\r
  77 \r
  78 namespace caspar { namespace decklink {\r
  79                 \r
  80 class decklink_producer : boost::noncopyable, public IDeckLinkInputCallback\r
  81 {       \r
  82         CComPtr<IDeckLink>                                                                                      decklink_;\r
  83         CComQIPtr<IDeckLinkInput>                                                                       input_;\r
  84         \r
  85         const std::wstring                                                                                      model_name_;\r
  86         const core::video_format_desc                                                           format_desc_;\r
  87         const size_t                                                                                            device_index_;\r
  88 \r
  89         safe_ptr<diagnostics::graph>                                                            graph_;\r
  90         boost::timer                                                                                            tick_timer_;\r
  91         boost::timer                                                                                            frame_timer_;\r
  92                 \r
  93         tbb::atomic<int>                                                                                        hints_;\r
  94         safe_ptr<core::frame_factory>                                                           frame_factory_;\r
  95         std::vector<size_t>                                                                                     audio_cadence_;\r
  96 \r
  97         tbb::concurrent_bounded_queue<safe_ptr<core::basic_frame>>      frame_buffer_;\r
  98 \r
  99         std::exception_ptr                                                                                      exception_;\r
 100                 \r
 101         ffmpeg::frame_muxer                                                                                     muxer_;\r
 102 \r
 103 public:\r
 104         decklink_producer(const core::video_format_desc& format_desc, size_t device_index, const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filter)\r
 105                 : decklink_(get_device(device_index))\r
 106                 , input_(decklink_)\r
 107                 , model_name_(get_model_name(decklink_))\r
 108                 , format_desc_(format_desc)\r
 109                 , device_index_(device_index)\r
 110                 , frame_factory_(frame_factory)\r
 111                 , audio_cadence_(frame_factory->get_video_format_desc().audio_cadence)\r
 112                 , muxer_(format_desc.fps, frame_factory, filter, ffmpeg::display_mode::deinterlace)\r
 113         {\r
 114                 hints_ = 0;\r
 115                 frame_buffer_.set_capacity(2);\r
 116                 \r
 117                 graph_->add_guide("tick-time", 0.5);\r
 118                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 119                 graph_->set_color("late-frame", diagnostics::color(0.6f, 0.3f, 0.3f));\r
 120                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 121                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 122                 graph_->set_color("output-buffer", diagnostics::color(0.0f, 1.0f, 0.0f));\r
 123                 graph_->set_text(print());\r
 124                 diagnostics::register_graph(graph_);\r
 125                 \r
 126                 auto display_mode = get_display_mode(input_, format_desc_.format, bmdFormat8BitYUV, bmdVideoInputFlagDefault);\r
 127                 \r
 128                 // NOTE: bmdFormat8BitARGB is currently not supported by any decklink card. (2011-05-08)\r
 129                 if(FAILED(input_->EnableVideoInput(display_mode, bmdFormat8BitYUV, 0))) \r
 130                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 131                                                                         << msg_info(narrow(print()) + " Could not enable video input.")\r
 132                                                                         << boost::errinfo_api_function("EnableVideoInput"));\r
 133 \r
 134                 if(FAILED(input_->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType32bitInteger, format_desc_.audio_channels))) \r
 135                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 136                                                                         << msg_info(narrow(print()) + " Could not enable audio input.")\r
 137                                                                         << boost::errinfo_api_function("EnableAudioInput"));\r
 138                         \r
 139                 if (FAILED(input_->SetCallback(this)) != S_OK)\r
 140                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 141                                                                         << msg_info(narrow(print()) + " Failed to set input callback.")\r
 142                                                                         << boost::errinfo_api_function("SetCallback"));\r
 143                         \r
 144                 if(FAILED(input_->StartStreams()))\r
 145                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 146                                                                         << msg_info(narrow(print()) + " Failed to start input stream.")\r
 147                                                                         << boost::errinfo_api_function("StartStreams"));\r
 148                 \r
 149                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";\r
 150         }\r
 151 \r
 152         ~decklink_producer()\r
 153         {\r
 154                 if(input_ != nullptr) \r
 155                 {\r
 156                         input_->StopStreams();\r
 157                         input_->DisableVideoInput();\r
 158                 }\r
 159         }\r
 160 \r
 161         virtual HRESULT STDMETHODCALLTYPE       QueryInterface (REFIID, LPVOID*)        {return E_NOINTERFACE;}\r
 162         virtual ULONG STDMETHODCALLTYPE         AddRef ()                                                       {return 1;}\r
 163         virtual ULONG STDMETHODCALLTYPE         Release ()                                                      {return 1;}\r
 164                 \r
 165         virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents /*notificationEvents*/, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags /*detectedSignalFlags*/)\r
 166         {\r
 167                 return S_OK;\r
 168         }\r
 169 \r
 170         virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* video, IDeckLinkAudioInputPacket* audio)\r
 171         {       \r
 172                 if(!video)\r
 173                         return S_OK;\r
 174 \r
 175                 try\r
 176                 {\r
 177                         muxer_.force_deinterlacing((hints_ & core::frame_producer::DEINTERLACE_HINT) != 0);\r
 178 \r
 179                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 180                         tick_timer_.restart();\r
 181 \r
 182                         frame_timer_.restart();\r
 183 \r
 184                         void* bytes = nullptr;\r
 185                         if(FAILED(video->GetBytes(&bytes)) || !bytes)\r
 186                                 return S_OK;\r
 187                         \r
 188                         safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 189                         avcodec_get_frame_defaults(av_frame.get());\r
 190                                                 \r
 191                         av_frame->data[0]                       = reinterpret_cast<uint8_t*>(bytes);\r
 192                         av_frame->linesize[0]           = video->GetRowBytes();                 \r
 193                         av_frame->format                        = PIX_FMT_UYVY422;\r
 194                         av_frame->width                         = video->GetWidth();\r
 195                         av_frame->height                        = video->GetHeight();\r
 196                         av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 197                         av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 198                                         \r
 199                         muxer_.push(av_frame);          \r
 200                                                                         \r
 201                         // It is assumed that audio is always equal or ahead of video.\r
 202                         if(audio && SUCCEEDED(audio->GetBytes(&bytes)))\r
 203                         {\r
 204                                 auto sample_frame_count = audio->GetSampleFrameCount();\r
 205                                 auto audio_data = reinterpret_cast<int32_t*>(bytes);\r
 206                                 muxer_.push(std::make_shared<core::audio_buffer>(audio_data, audio_data + sample_frame_count*format_desc_.audio_channels));\r
 207                         }\r
 208                         else\r
 209                         {\r
 210                                 muxer_.push(std::make_shared<core::audio_buffer>(audio_cadence_.front(), 0));\r
 211                                 std::rotate(std::begin(audio_cadence_), std::begin(audio_cadence_)+1, std::end(audio_cadence_));\r
 212                         }\r
 213 \r
 214                         for(auto frame = muxer_.poll(); frame; frame = muxer_.poll())\r
 215                         {\r
 216                                 if(!frame_buffer_.try_push(make_safe_ptr(frame)))\r
 217                                         graph_->add_tag("dropped-frame");\r
 218                         }\r
 219 \r
 220                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 221 \r
 222                         graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 223                 }\r
 224                 catch(...)\r
 225                 {\r
 226                         exception_ = std::current_exception();\r
 227                         return E_FAIL;\r
 228                 }\r
 229 \r
 230                 return S_OK;\r
 231         }\r
 232         \r
 233         safe_ptr<core::basic_frame> get_frame(int hints)\r
 234         {\r
 235                 if(exception_ != nullptr)\r
 236                         std::rethrow_exception(exception_);\r
 237 \r
 238                 hints_ = hints;\r
 239 \r
 240                 safe_ptr<core::basic_frame> frame = core::basic_frame::late();\r
 241                 if(!frame_buffer_.try_pop(frame))\r
 242                         graph_->add_tag("late-frame");\r
 243                 graph_->set_value("output-buffer", static_cast<float>(frame_buffer_.size())/static_cast<float>(frame_buffer_.capacity()));      \r
 244                 return frame;\r
 245         }\r
 246         \r
 247         std::wstring print() const\r
 248         {\r
 249                 return model_name_ + L" [" + boost::lexical_cast<std::wstring>(device_index_) + L"]";\r
 250         }\r
 251 };\r
 252         \r
 253 class decklink_producer_proxy : public core::frame_producer\r
 254 {               \r
 255         safe_ptr<core::basic_frame>             last_frame_;\r
 256         com_context<decklink_producer>  context_;\r
 257         const int64_t                                   length_;\r
 258 public:\r
 259 \r
 260         explicit decklink_producer_proxy(const safe_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, size_t device_index, const std::wstring& filter_str, int64_t length)\r
 261                 : context_(L"decklink_producer[" + boost::lexical_cast<std::wstring>(device_index) + L"]")\r
 262                 , last_frame_(core::basic_frame::empty())\r
 263                 , length_(length)\r
 264         {\r
 265                 context_.reset([&]{return new decklink_producer(format_desc, device_index, frame_factory, filter_str);}); \r
 266         }\r
 267 \r
 268         ~decklink_producer_proxy()\r
 269         {\r
 270                 auto str = print();\r
 271                 context_.reset();\r
 272                 CASPAR_LOG(info) << str << L" Successfully Uninitialized.";     \r
 273         }\r
 274 \r
 275         // frame_producer\r
 276                                 \r
 277         virtual safe_ptr<core::basic_frame> receive(int hints) override\r
 278         {\r
 279                 auto frame = context_->get_frame(hints);\r
 280                 if(frame != core::basic_frame::late())\r
 281                         last_frame_ = frame;\r
 282                 return frame;\r
 283         }\r
 284 \r
 285         virtual safe_ptr<core::basic_frame> last_frame() const override\r
 286         {\r
 287                 return disable_audio(last_frame_);\r
 288         }\r
 289         \r
 290         virtual int64_t nb_frames() const override\r
 291         {\r
 292                 return length_;\r
 293         }\r
 294         \r
 295         std::wstring print() const override\r
 296         {\r
 297                 return context_->print();\r
 298         }\r
 299 \r
 300         virtual boost::property_tree::wptree info() const override\r
 301         {\r
 302                 boost::property_tree::wptree info;\r
 303                 info.add(L"type", L"decklink-producer");\r
 304                 return info;\r
 305         }\r
 306 };\r
 307 \r
 308 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 309 {\r
 310         if(params.empty() || !boost::iequals(params[0], "decklink"))\r
 311                 return core::frame_producer::empty();\r
 312 \r
 313         auto device_index       = get_param(L"DEVICE", params, 1);\r
 314         auto filter_str         = get_param(L"FILTER", params);         \r
 315         auto length                     = get_param(L"LENGTH", params, std::numeric_limits<int64_t>::max());    \r
 316         auto format_desc        = core::video_format_desc::get(get_param(L"FORMAT", params, L"INVALID"));\r
 317         \r
 318         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 319         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 320         \r
 321         if(format_desc.format == core::video_format::invalid)\r
 322                 format_desc = frame_factory->get_video_format_desc();\r
 323                         \r
 324         return create_producer_destroy_proxy(make_safe<decklink_producer_proxy>(frame_factory, format_desc, device_index, filter_str, length));\r
 325 }\r
 326 \r
 327 }}